package kr.co.hanbit;

public class StringBufEx3 {
public static void main(String[] args) {
	StringBuffer sb1 = new StringBuffer("sun-ae");
	StringBuffer sb2 = sb1.append("&kyung-ju");
	System.out.println(sb1);
	System.out.println(sb2);
	sb1.insert(6, "&yun-a");
	String msg = sb1.toString();
	System.out.println(sb1);
}
}
